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Author Topic: Sapphire 7990 still a good card?  (Read 449 times)
Gabteb
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May 18, 2017, 11:18:46 PM
 #1

Hi!
I have seen this on ebay:
http://www.ebay.com/itm/AMD-radeon-HD7990-X2-Sapphire-deux-cartes-crossfire-Perfect-for-mining-/322520804105?hash=item4b17bceb09:g:Xy0AAOSw1WJZHYnc

It's still a good choice for mining Etherum?

Many thanks!

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Jdope
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May 18, 2017, 11:56:34 PM
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I think it would be a better fit for mining Zec, it gets hot as far as I know, also if that price is for just 1 7990 then that is way over priced. You're better off getting rx 470/570s at that price.
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May 19, 2017, 12:00:28 AM
 #3

I think it would be a better fit for mining Zec, it gets hot as far as I know, also if that price is for just 1 7990 then that is way over priced. You're better off getting rx 470/570s at that price.

Vendor sells two at that price!
Very nice model.

Gabteb
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May 19, 2017, 12:56:14 PM
 #4

Ok thanks,
And wich motherboard to use if i want to mine with 6 gpu, the BTC motherboards are all out of stock!

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May 19, 2017, 01:33:35 PM
 #5

Ok thanks,
And wich motherboard to use if i want to mine with 6 gpu, the BTC motherboards are all out of stock!

LOL
What sort of PSU you need for pushing 6 of them? You might encounter all sort of issues with it.
I'd rather split the rig into multiple pieces.

RentGPU
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May 19, 2017, 05:21:40 PM
 #6

You should mine zcash with that only if you have cheap electricity , this card is a power drawer very low efficiency , but if you don't care about electricity free or cheap then it should make a fast roi with zec.
Gabteb
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May 22, 2017, 03:54:35 PM
 #7

Okay, many thanks, the Rx580 is good as well?

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